Shrub to 3 m tall, apparently lacking lignotubers. Branches erect, spreading or arching; young branches brown, villous to pilose. Leaves opposite or rarely in whorls of 3, sessile or shortly petiolate; lamina orbicular, 15-20 mm diam., obtuse, slightly cordate and cupped, entire, glabrous. Conflorescence 4-6-flowered. Flowers zygomorphic. Perianth 40-50 mm long, red, dilated about middle, brown-hirsute; abaxial suture deepest. Hypogynous glands 4, free. Ovary densely brown-pilose; style glabrous above, sparsely pilose in lower half. Fruit asymmetric, 7-10 mm diam., flattened; beak oblique; horns scarcely developed; sides smooth. Seeds 2, asymmetric, cuneate, c. 10 mm long, c. 6 mm wide, with a narrow wing from apex to base along one side.
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